I like to render them bigger too. I tried to render one at 5000x2500 and after 20 hours it is only nearly half of it finished.
I will pause and render the lower half at half that quality and then comp those renders.
Wanted to see how it looks at that resolution and how long it takes.
I won't render them at that resolution until the challenge ends.
Good that we only need to render at lower quality. This could take quite a while.
Made some models between so nothing is lost.